XYZW is a parallelogram with diagonals XZ and YW that intersect at point A. If XA = 3m, ZA = 5m-4, and YW=10m, find YW.

Opposite angles are always congruent in a(n)

Consecutive angles are always supplementary in a

One way to prove that a quadrilateral is a parallelogram is to show that

Not all rectangles have

Diagonals are always perpendicular in a

 If DEFG is a square, find m $\angle$  DEG 
(Please draw the figure!!!)

The measures of the bases of a trapezoid are 14 and 20. What is the measure of the median of the trapezoid?

 MNOP is an isosceles trapezoid with NO $\parallel$  MP. If m $\angle$  M = 2x and M $\angle$  P = -x + 27, find the m $\angle$  M.

If a diagonal of MNOP divides MNOP into two equilateral triangles, what kind of figure must MNOP be?